Thread guide support in spinning machines



Oct. 21, 1952 w. HOPFMANN 38 THREAD cums SUPPORT 'IN SPINNING momma Filed April as, 1950 2 swam-4mm INVENTOR. K402i kFFMAA M A TTORNE Y Oct. 21, 1952 w. HOFFMANN 2,614,382

THREAD GUIDE SUPPORT m SPINNING MACHINE Filed April 28, 1950 2 2 l 27 25 I 30 .a/ 1 0 29 n k INVENTOR:

WAL TE R HOF F MANN It. 6. A ATTORNfifi Patented Oct. 21, e 1952 "2,614,382 THREAD GUIDE SUPPORT IN SPINNING MACHINES 1 7 Walter Hofimann, Zurich; Switzerland, assigii'o'r to Actiengesellschaft J 011. J aeob Rieter' '& (3i Winterthur, Switzerland, a corporation of Swi zerland Application April 28, 1950, Serial noqisegtei In Switzerland May 2, 1949; i

9 Claims. (c1.-57-110)' 1 The present invention relates to a carrier mechanism for the thread guides in spinning machines.

An object of. the present invention is'the'provision of a carrying-mechanism for-the thread guides on spinning machines which means can be actuated for simultaneous change of the elevational position of all thread guides. The mechanism comprises a bar extending below the drawing-roll frames andhas uprights at its ends which are guided in vertical grooves in support barsfor the drawing-roll frames} The thread guides are mounted on a horizontal rod supported by the uprights. Guides for the thread guide carrier according to the invention can be easily manufactured and-supervised, and the carrier moves in suchguides practically without friction. Slow upward movement of the thread guide carrier prevents movements which interfere with spinning.

The carrier according to the invention is preferably suspended'by flexible members, such as chains, which extend over rolls which are supported by walls or framework arranged i'n'the main frame of the spinning'machine.

The fiexiblemembers suspending one carrier are preferably connected to a common bar pulling on the members when movedin axial direc tion. A chain or other flexible member is. conthe equalization of the thread tension during nected with one end of the bar and extends in line with the bar to a roll arranged at on'e'end of the spinning machine for beingwound on said roll when the machine is in operation. The winding rolls for the last mentioned chains for raising (and lowering) the carriers of onemachine are preferably fixed to a common shaft which is driven by another shaft by means of a third 'fiexible means. This third means or one cf the shafts is provided with a weight or resilient means for counterbalanci n the weight of the thread guide carriers and for'reducing the powerlneeded for raising the carriers.

A further object of the invention is the prevision'of adjusting means for simultaneous adjustment'of the initial elevational position of all thread guides of a spinning machine. The adjusting means comprise a sleeve rotatably and axially movably; connected with the actuating shaft for-a mechanism for changing the eleva-' tional position of the thread guides. The sleeve has a slanted; end surface cooperating with a radial pin onsaid shaft. Upon axial movement of the sleeve'r'elative to the shaft, the slanted end surface which engages the pin causes rotation of the shaft andjtherebyfadjustment ofthe "tial position of thethread guides relative to the position Of the shafts Further and "other-objects of the presentinvention will be hereinafter set forth in the-acv companying specification and claims," and are shown in the drawings which, by wayof -illun tration, show"what I-"now' consider to-be preferred embodiments of the invention. In the drawing? v Fig. 1 is a schematic, fractional side elevation, partly in section} of" a spinning. machine equipped with the mechanism according tothe inventionand -omitti'ng the parts hotpe'rtineht to': the invention; :1

Fig. 2=-i s --a cross' sectional'; schematic; fractional view of the spinning rh'achine as shown in Fig. 1, the scale of "Fig; 12 being larger'th'an that of Fig. 1; 1

Fig. 3 is a schematic, large scale view of a portion 'of the mechanism shown in Fig; 1 looking outward on Fig. 1; I

'Fig. 4 is a'perspe'c'tive view showing the drive of the-device according to the invention'by a conventional mechanism.

Like. parts are designated by like numerals in all figures of' the-drawing. v

Referring more"" particu1ar1yto the drawing, numeral-2 designa'tesfrods extending along the I sides-of the spinning machine and supporting threadguidesl of which a few only are shown in Fig. 1'. "Rods2 are-[supported by upright portions attheends of carrier members-3 whose horizontal portionsare placed'below angle irons 4, which support thedrawing-roll frames, which are not shown as'they do notform part of the present invention. Members-4 are provided with vertical grooves 5 serving'as guides for the upright portions of carrier members 3' which slide freely insaid grooves. Carriers 3 are suspended at both sides of thespinhingmachin'eb'y chains 6 which extend over rollers 'I' borne in intermediate frames 'or' walls 8. The chains fi at each end of acarrier-are connected to a common bar 9,there being two bars foreachcarrien One .7

end ofa chain vIITis c'onnected' to the end of each bar on the dri'ving'en'd of the machine, the other ends of chains- I E! "being individually made fast on rollers I I; Rollers l I are connected with a transverse shaft I2 to'which is-* fixed a drive roller I3. One end of a chain is connected with roller I 3 and its other end is connected to a'roller I5 placedbelow roller 13. 'A"weight I6 is connected with chain I4 between rollers I 3 'an'd'jl 5. Numeral I! designates the spindle carrier.

Upon counterclockwise rotation of shaft l2, as viewed in Fig. 1, chains l are wound on rollers II and bars 9 are pulled to the left and pull on chains 6 thereby raising carriers 3. This causes simultaneous raising of all vthreadtguides I on both sides of tharhachine. lit the same time chain I 4 is wound on roller l5 and unwound from roller I3. Weight l6 counterbalances the weightof carriers 3 and parts connected thereto and facilitates movement thereof. The weight of :carriers 3 and'parts connected therewith causes a moment of rotation on shaft l2 through .bars 9 and chains H] which is somewhat smaller than that effected by the weight 16 through chain l4."

Thus the chain I4 is tensioned even when running on roller l5. If, for example, roller I5 ro- 4 design and construction shown and described, for obvious modifications will occur to a person skilled in the art.

I claim:

,1, Ina spinning machine having two ends, a support ,mleansfi-pjlaced; on eac'h end of the machine, vertical guide means connected with said support means, a plurality of carrier members individually having a substantially horizontal portion extending transversely to and underneath said support means and having vertical end portions individually guided in said guide means tates clockwise, chain 14 unwind's from 'SEldTI'OHBI and is wound at the same time on roller |3 due tothe weight of the carriers 3 which are thereby permitted to descend.

For adjusting the initial position of all carriers ,3, a mechanism maybe provided as illustrated in Fig. 3. In this case, drive rroller i3 is fixed to a sleeve 2| in which shaft 2is rotatable and axially .slidable.

and at least the last axially vslidably carried in supports 18. One :end'of sleeve 2| has a slanted face 20 on which slides a ;pin :l-9 extending radially from shaft .-|.-2. The end of shaft 12 which is borne in sleeve 2| is provided with a threaded extension 12' projecting :from sleeve 2|. By tightening nut 2 2cm extension l2, shaft 12 is moved to the left .as seen in'Eig. 3 and into sleeve 2| causing pin 18 to ride-upon surface 20,, thereby rotating shaft I2 in a direction to pull on chains l0 for raising carriers 3. The mechanism provides for simultaneousadjustment of the initial elevation of all thread guides I.

The roller I5 is preferably operated by the builder mechanism which .-is provided in conventional spinning machines for actuating the ring rail. Such a mechanism is diagrammatically .-illustrated in Fig. 4. It comprises a lever member 23 swingingon'pin 25 and having-a free end hung on the ring rail by a chain 2 i. .-A cam follower roller 26 supported on ;-lever member '23 engages cam 21. The free end of member 23 carries a shaft 29 by means of brackets 28, which shaft carries a ratchet wheel tfl connected with a worm 3|. Wheel 30 is engaged by a pawl 32 swinging about a stationary fulcrum. Worm 3| actuates a worm whee1 33 on a shaft 34 rotatably carried and disposed longitudinally of lever member 23. At one end of shaft 34 is a roller 35'to which cha-in 24 'is connected and at the other end is the'roller l5 to which the chain 14 is connected.

When the machine is in operation, cam 2-! rotates clockwise and causes oscillating movement of member 23. Roller 35 is thereby moved up and down and actuates the ring rail through chain 24 in the conventional manner. :Pawl 32 causes clockwise rotation of ratchet wheel 30 and worm 3| at each downward movement of the left end Sleeve 21 and shaft |2 "are .rotatably for affording guided up and down motion of said carrier members, a support member connected with said verticalportions on each end of the machine, and thread guides supported by said support rnemberl "2. *In'a spinning machine as defined in claim 1, intermediate frame means extending parallel to said carrier members and supporting said support means, rollers supported by said frame means, and flexible suspension means extending over and depending from said rollers and connected .to and suspending said carrier members. 3,. In a spinning machine as defined in claim v1, intermediate frame means extending parallel to said carrier members .and supporting said support means, rollers supported by said frame means, flexible suspension means individually extending over and having an end depending from said rollers and connected to .and suspending said carrier members, substantially horizontal rod members longitudinally .movably supported in said frame means, th .other ends of the flexible means being connected with said rod members for raising and lowering the suspended carrier members upon longitudinal movement of the rod members in one or the-opposite direction, a flexible member connected with one end of each of said rod members, and rolls individually connected with said flexible members and adapted to wind and unwind said members for longitudinally moving the connectedrod members and raising and lowering said carrier members.

4. In a spinning machine as defined in claim 1, intermediate frame means extending parallel to said carrier members and supporting said support means, rollers supported by said frame means, flexible suspension means individually extending over and having an end depending from said rollers and connected to and suspending said carrier members, substantially horizontal rod members longitudinally movably supported in said frame means, the other ends of the flexible means being connected with said rod membars for r-aisingand lowering the suspended carrier members upon longitudinal movement of the rod members in one or the opposite direction, a flexible member connected with one end of each of said rodmembers, .a shaft placed transversely to thelongitudinal axes of said rod members,

ofmember 23. the same time worm wheel 33,

rollsmounted on said 'Zshaft, said flexible members being individually connected with said rolls and adapted to be wound thereon and unwound therefrom for longitudinally moving the connected rod members and raising and lowering said carrier members, and means connected with said shaft for rotating it in the direction for Winding said flexible members on said rolls and counterbalancin the unwinding force caused by the weight-of said carrier members.

5. In a spinning machine as defined in claim 1, intermediate frame means extending parallel to saidIcarrier members and supporting said sup- P t m n rollers] supported by said frame means, flexible suspension means individually extending over and having an end dependin from said rollers and connected to and suspending said carrier members, substantially horizontal rod members longitudinally movably supported in said frame means, the other ends of the flexible means beingconnected with said rod members for raising and lowering the suspended carrier members upon longitudinal movement of the rod members in one or the opposite direction, a flexible member connected with on end of each of said rod members, a shaft placed transversely to the longitudinal axes of said rod members, rolls mounted on said shaft, said flexible members being individually connected with said rolls and adapted to be wound thereon and unwound therefrom for longitudinally moving the connected rod members and raising and lowering said carrier members, and drive means connected with said shaft for rotating it for raising said carrier members.

6. In a spinning machine as defined in claim 1, intermediate frame means extending parallel to said carrier members and supporting said support means, rollers supported by said frame means, flexible suspension means individually extending, over and having an end depending from said rollers and connected to and suspending said carrier members, substantially horizontal rod members longitudinally movably supported in said frame means, the other ends of the flexible means being connected with said rod members for raising and lowering the suspended car rier members upon longitudinal movement of the rod members in one or the opposite direction, a flexible member connected with one end of each of said rod members, a shaft placed transversely to the longitudinal axes of said rod members, rolls mounted on said shaft, said flexible members being individually connected with said rolls and adapted to be wound thereon and unwound therefrom for longitudinally moving the connected rod members and raising and lowering said carrier members, and another flexible means extending around and connected with said shaft for rotating it, a weight suspended by said other flexible means for rotating the shaft in the direction for winding said flexible members on said rolls and counterbalancing the unwinding force caused by the weight of said carrier members.

7. A spinning machine comprising supportmeans, substantially vertical guide means connected with said support means, a plurality of carrier members individually having two end portions individually guided in said guide means for up and down movement of said carrier members,

a support member connected with on of the end portions of said carrier members, a second support member connected with the other end portion of said carrier members, a plurality of thread guides connected with said support members, actuating means connected with said carrier members and comprising a shaft whose rotation in one direction effects upward movement of said carrier members and whose rotation in the opposite direction effects downward movement of said carrier members, drive means for said shaft, and adjusting means interposed between said shaft and said drive means for initially setting the position of said shaft relative to said drive means.

8. A spinning machine as set forth in claim 7, said adjusting means comprising a sleeve connected with said drive means, said shaft having anend portion extending into said sleeve and being rotatable and axially movable therein, a pin radially extending from said shaft, said sleeve having a guide surface slidably engaging said pin and being slanted with respect to the rotation axis of said sleeve, and means for changing the relative axial position of said shaft and of said sleeve for rotating said shaft relative to said sleeve by the engagement of the slanted surface and the pin.

9. A spinning machine as set forth in claim 7, said adjusting means comprising a sleeve connected with said drive means, said shaft having an end portion extending into said sleeve and being rotatable and axially movable therein, a pin radially extending from said shaft, said sleeve having a guide surface slidably engaging said pin and being slanted with respect to the rotation axis of said sleeve, said sleeve having an end surface at a right angle to its rotation axis, the end portion of said shaft being threaded and projecting beyond said end surface of said sleeve, and a nut screwed on said end portion and abutting said end surface and affording change of the relative axial position of said shaft and of said sleeve upon tightening of said nut and rotation of said shaft relative to said sleeve by the engagement of the slanted surface and the pin.

WALTER No references cited. 

